The list of countries that don't extradite to the U.S. and the list of countries a wealthy person would want to live in don't have much overlap, unless you think Syria and Somalia are wonderful places to live. (There are a number of countries, like Indonesia and Vatican City that don't have extradition treaties with the U.S. but which will extradite to the U.S. through Interpol.)

The most famous recent example if probably Ghosn fleeing Japan to Lebanon. It does make one wonder how likely it will be for the next case. That being said, the coincidence of great wealth and being from a country that treats you as a hero and doesn't have extradition treaties with the west does seem quite low, but obviously not zero.